Loss of vision (this can be painful or non-painful)
Blurred vision
Flashing lights
Alterations in colour vision
Weakness of the eyes, arms or legs
Indications for B.E.R.A
It is an effective screening tool for evaluating cases of deafness due to retrocochlear pathology i.e. (Acoustic schwannoma). An abnormal BERA is an indication for MRI scan.
Used in screening newborns for deafness .
Used for intraoperative monitoring of central and peripheral nervous system .
Monitoting patents in intensive care units.
Diagnosing suspected demyelinated disorders.
EEG- Electro Encephalo Graphy
Indications for E.E.G.
The most common reason an EEG is performed is to diagnose and monitor seizure disorders.
EEGs can also help to identify causes of other problems such as sleep disorders and changes in behavior.
EEGs are sometimes used to evaluate brain activity after a severe head injury or before heart or liver transplantation.
To distinguish epileptic seizures from other types of spells, such as psychogenic non-epileptic seizures, syncope (fainting), sub-cortical movement disorders and migraine variants.
To differentiate "organic" encephalopathy or delirium from primary psychiatric syndromes such as catatonia
To serve as an adjunct test of brain death.
To prognosticate, in certain instances, in patients with coma.
To determine whether to wean anti-epileptic medications.
